Add the icplus phy patch, will be required for the r6040 driver later, thanks to Daniel Gimpelevich

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8470 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 183 insertions, 0 deletions

diff --git a/target/linux/generic-2.6/config-2.6.22 b/target/linux/generic-2.6/config-2.6.22
index cb257fcfb..a4da4ee5b 100644
--- a/target/linux/generic-2.6/config-2.6.22
+++ b/target/linux/generic-2.6/config-2.6.22
@@ -406,6 +406,7 @@ CONFIG_HZ_100=y
 # CONFIG_I2C_VOODOO3 is not set
 # CONFIG_I2O is not set
 # CONFIG_I82092 is not set
+# CONFIG_ICPLUS_PHY is not set
 CONFIG_IDE_MAX_HWIFS=4
 # CONFIG_IDEDISK_MULTI_MODE is not set
 # CONFIG_IDE_TASK_IOCTL is not set
diff --git a/target/linux/generic-2.6/patches-2.6.22/999-icplus.patch b/target/linux/generic-2.6/patches-2.6.22/999-icplus.patch
new file mode 100644
index 000000000..2437e7ba9
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.22/999-icplus.patch
@@ -0,0 +1,182 @@
+From: Michael Barkowski <michael.barkowski@freescale.com>
+Date: Fri, 11 May 2007 23:24:51 +0000 (-0500)
+Subject: phylib: add the ICPlus IP175C PHY driver
+X-Git-Tag: v2.6.23-rc1~1201^2~58
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=0cefeebaf3da39d768bffcf62460fe2088e824ef
+
+phylib: add the ICPlus IP175C PHY driver
+
+The ICPlus IP175C sports a 100Mbit/s 4-port switch in addition
+to a dedicated 100Mbit/s WAN port.
+
+Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com>
+Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
+Signed-off-by: Jeff Garzik <jeff@garzik.org>
+---
+
+diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
+index 09b6f25..dd09011 100644
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -55,6 +55,11 @@ config BROADCOM_PHY
+ 	---help---
+ 	  Currently supports the BCM5411, BCM5421 and BCM5461 PHYs.
+ 
++config ICPLUS_PHY
++	tristate "Drivers for ICPlus PHYs"
++	---help---
++	  Currently supports the IP175C PHY.
++
+ config FIXED_PHY
+ 	tristate "Drivers for PHY emulation on fixed speed/link"
+ 	---help---
+diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
+index bcd1efb..8885650 100644
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -11,4 +11,5 @@ obj-$(CONFIG_QSEMI_PHY)		+= qsemi.o
+ obj-$(CONFIG_SMSC_PHY)		+= smsc.o
+ obj-$(CONFIG_VITESSE_PHY)	+= vitesse.o
+ obj-$(CONFIG_BROADCOM_PHY)	+= broadcom.o
++obj-$(CONFIG_ICPLUS_PHY)	+= icplus.o
+ obj-$(CONFIG_FIXED_PHY)		+= fixed.o
+diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c
+new file mode 100644
+index 0000000..af3f1f2
+--- /dev/null
++++ b/drivers/net/phy/icplus.c
+@@ -0,0 +1,134 @@
++/*
++ * Driver for ICPlus PHYs
++ *
++ * Copyright (c) 2007 Freescale Semiconductor, Inc.
++ *
++ * This program is free software; you can redistribute  it and/or modify it
++ * under  the terms of  the GNU General  Public License as published by the
++ * Free Software Foundation;  either version 2 of the  License, or (at your
++ * option) any later version.
++ *
++ */
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/errno.h>
++#include <linux/unistd.h>
++#include <linux/slab.h>
++#include <linux/interrupt.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/skbuff.h>
++#include <linux/spinlock.h>
++#include <linux/mm.h>
++#include <linux/module.h>
++#include <linux/mii.h>
++#include <linux/ethtool.h>
++#include <linux/phy.h>
++
++#include <asm/io.h>
++#include <asm/irq.h>
++#include <asm/uaccess.h>
++
++MODULE_DESCRIPTION("ICPlus IP175C PHY driver");
++MODULE_AUTHOR("Michael Barkowski");
++MODULE_LICENSE("GPL");
++
++static int ip175c_config_init(struct phy_device *phydev)
++{
++	int err, i;
++	static int full_reset_performed = 0;
++
++	if (full_reset_performed == 0) {
++
++		/* master reset */
++		err = phydev->bus->write(phydev->bus, 30, 0, 0x175c);
++		if (err < 0)
++			return err;
++
++		/* ensure no bus delays overlap reset period */
++		err = phydev->bus->read(phydev->bus, 30, 0);
++
++		/* data sheet specifies reset period is 2 msec */
++		mdelay(2);
++
++		/* enable IP175C mode */
++		err = phydev->bus->write(phydev->bus, 29, 31, 0x175c);
++		if (err < 0)
++			return err;
++
++		/* Set MII0 speed and duplex (in PHY mode) */
++		err = phydev->bus->write(phydev->bus, 29, 22, 0x420);
++		if (err < 0)
++			return err;
++
++		/* reset switch ports */
++		for (i = 0; i < 5; i++) {
++			err = phydev->bus->write(phydev->bus, i,
++						 MII_BMCR, BMCR_RESET);
++			if (err < 0)
++				return err;
++		}
++
++		for (i = 0; i < 5; i++)
++			err = phydev->bus->read(phydev->bus, i, MII_BMCR);
++
++		mdelay(2);
++
++		full_reset_performed = 1;
++	}
++
++	if (phydev->addr != 4) {
++		phydev->state = PHY_RUNNING;
++		phydev->speed = SPEED_100;
++		phydev->duplex = DUPLEX_FULL;
++		phydev->link = 1;
++		netif_carrier_on(phydev->attached_dev);
++	}
++
++	return 0;
++}
++
++static int ip175c_read_status(struct phy_device *phydev)
++{
++	if (phydev->addr == 4) /* WAN port */
++		genphy_read_status(phydev);
++	else
++		/* Don't need to read status for switch ports */
++		phydev->irq = PHY_IGNORE_INTERRUPT;
++
++	return 0;
++}
++
++static int ip175c_config_aneg(struct phy_device *phydev)
++{
++	if (phydev->addr == 4) /* WAN port */
++		genphy_config_aneg(phydev);
++
++	return 0;
++}
++
++static struct phy_driver ip175c_driver = {
++	.phy_id		= 0x02430d80,
++	.name		= "ICPlus IP175C",
++	.phy_id_mask	= 0x0ffffff0,
++	.features	= PHY_BASIC_FEATURES,
++	.config_init	= &ip175c_config_init,
++	.config_aneg	= &ip175c_config_aneg,
++	.read_status	= &ip175c_read_status,
++	.driver		= { .owner = THIS_MODULE,},
++};
++
++static int __init ip175c_init(void)
++{
++	return phy_driver_register(&ip175c_driver);
++}
++
++static void __exit ip175c_exit(void)
++{
++	phy_driver_unregister(&ip175c_driver);
++}
++
++module_init(ip175c_init);
++module_exit(ip175c_exit);